泵源液压系统压力脉动抑制方法研究

Studies on pressure pulsation attenuation of hydraulic pump system

介绍了泵源液压系统振动与噪声产生的原因,分析了液压系统振动与噪声的危害。设计制造了一种基于流体—结构耦合振动的结构共振式液压脉动滤波器,在转运车泵源液压系统压力脉动测试试验平台上进行了2组试验。测试了泵源液压系统实际工况的压力脉动和安装滤波器后系统的压力脉动情况,得出2种试验条件下的液压脉动波动幅度和脉动率。验证了结构共振式液压脉动滤波器的使用效能和不足,为液压系统振动控制提供了新的技术手段。

This paper introduces the causes for the generation of the hydraulic pump system＇s vibration and noise,and analyzes the hazard of the hydraulic pump system＇s vibration and noise. Wherein,a kind of structure resonant hydraulic pulsation wave filter based on fluid-structure coupling vibration is designed and manufactured,and two sets of experiment are performed on the platform for testing the pressure pulsation of the hydraulic pump system of material transfer vehicle. The experiment tests the pressure pulsation under the actual working conditions of the hydraulic pump system,and the pressure pulsation conditions after installation of the wave filter,thus to conclude the hydraulic pulsation fluctuation range and pulsation rate respectively under two testing conditions. The effective utilization and weakness of the structure resonant hydraulic pulsation wave filter are then verified,to provide new technical measures for vibration control of the hydraulic system.